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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents
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Comparing Trabeculectomy Outcomes between First and Second Operated Eyes: A Multicenter Study.

Kentaro Iwasaki1, Yoshihiro Takamura1, Takashi Nishida2

  • 1Department of Ophthalmology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan.

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Summary

A longer interval between trabeculectomy surgeries in the second eye, if the first was successful, increases the risk of failure. This finding impacts surgical strategies for bilateral glaucoma patients.

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Area of Science:

  • Ophthalmology
  • Glaucoma Surgery
  • Surgical Outcomes

Background:

  • Bilateral glaucoma necessitates consideration of sequential surgical strategies.
  • Trabeculectomy is a common surgical intervention for intraocular pressure (IOP) reduction.

Purpose of the Study:

  • To compare surgical outcomes between the first and second operated eyes following bilateral trabeculectomy.
  • To identify factors influencing the success of sequential trabeculectomy procedures.

Main Methods:

  • Retrospective cohort study of 84 open-angle glaucoma patients undergoing bilateral primary trabeculectomy.
  • Surgical success defined by IOP reduction (<20% preoperative IOP) and absolute IOP thresholds (Criteria A, B, C).
  • Failure also included reoperation, vision loss, or hypotony.

Main Results:

  • No significant difference in success rates between first and second operated eyes overall.
  • A longer interval (≥2 months) between successful first and second trabeculectomies was associated with significantly worse outcomes for the second eye.
  • Multivariable analysis confirmed longer intervals as a predictor of surgical failure in the second eye.

Conclusions:

  • For successful first trabeculectomy, a prolonged interval to the second surgery elevates the risk of failure in the second eye.
  • Findings suggest optimizing the timing of sequential trabeculectomy is crucial for managing bilateral glaucoma effectively.